Winding machine control



July 30, 1946. J L HALL AL 2,404,838

WINDING MACHINE CONTROL Filed Jan. 7, 1945 INVENTORS' JOHN L. HALL.ANGELO M- SANTOLLA.

x gwum A TTORNE Y5 Patented July 30, 1946 WINDING MACHINE CONTROL JohnLee Hall, Narrows, and Angelo M. Santolla,

Pearisburg, Va., assignors to Celanese Corporation of America, acorporation of Delaware Application January 7, 1943, Serial No. 471,536

2 Claims. 1

This invention relates to yarn winding and packaging machines, andrelates more particularly to improved means adapted to be applied to ayarn winding and packaging machine for stopping the winding of yarn onto the package when the package has attained a predetermined size.

It is an object of this invention to provide an improved device adaptedto be applied to a yarn winding machine for automatically and instantlystopping the winding of the yarn on to the package when the package hasattained a predetermined size.

Another object of this invention is to provide, in a yarn windingmachine, an improved stopping mechanism, responsive to the size of thepackage being wound, for halting the winding operation and preventingthe building up of the package to a point where the thread guide presseson the outside windings of the package to mar the same.

Other objects of this invention will appear from the following detaileddescription and drawing.

In yarn winding and packaging devices, as heretofore commonlyconstructed, it was found necessary to stop the winding machines duringlunch periods or change-of-shift periods in order to prevent theproduction of oversized packages and/or damaged packages caused by ththread guide rubbing against the outside windings of oversized packages.By employing the improved stopping mechanism of the present invention,not only are improved packages of yarn produced, but it is also notnecessary for the operator to be present during the winding of thecomplet package. Since the winding machine runs continuously from thestart until the package has reached its predetermined size, a betterpackage is produced than where the machine is stopped, slowed down orthe traverse of the yarn is otherwise disturbed during the building ofthe package. As is well known, a change of speed in the machine duringthe Winding operation invariably alters the throw of the yarn at eachend of the traverse stroke thus effecting the build of the ends of thepackage.

In accordance with our invention, we construct a package size controlgauge for application to a traverse frame dog of a winding machine, saidgauge presenting a working face positioned at an angle to the traversebar, thus permitting the assembly of a winding machine the operation ofwhich is automatically controlled by the size of the package.

A preferred embodiment of our invention is shown in the accompanyingdrawing wherein like reference numerals refer to the same or similarelements in the respective views.

In the drawing:

Figure 1 is a perspective view of the clutch and Figure 3 is across-sectional View taken on the line 3-3 of Figure 2,

Figure 4 is a cross-sectional view taken on the line 44 of Figure 3 andin a direction opposite to that of Figure 2, and

Figure 5 is a detail view of the gauge of our invention showing thestriking face.

Referring more particularly to the drawing, the reference numeral Iindicates standards on the main frame of a winding machine in which isjournaled a main shaft 2 adapted to rotate spindle 2' and the package ofyarn 3 being wound supported on said spindle. This main shaft 2 isequipp d with a driving pulley 4 adapted. to be rotated by a belt 5 whensaid belt is held in contact therewith by idler pulley 6. Idler pulley 6is journaled inone end of an arm 1 the other end of which rotates on astud shaft 8 mounted in a bracket 9 that is part of the main frame I.This main shaft 2 also has a brake drum ll attached thereto.

A clutch lever rod l2 extends across the top of the frame I from frontto rear. On the rear end of lever rod I2 is a cam face l3, which isadapted to act as the idler pulley arm lifter, while on the front end isa brake lever l4 arcuate in shape. The brake lever l4 carries a brake [5adapted to cooperate with the brake drum H in operative position. Acatch [6 is provided for cooperation with an abutment I! on a lever l8to maintain the brake in inoperative position out of contact with drumII. The lever [B is part of a traverse frame dog segment 19 that ispivoted to the main frame on a stud shaft 2|.

The winding machine is also equipped with a traverse frame a part ofwhich is indicated by the reference numeral 22. In general, thistraverse frame is mounted on the cam shaft bushing, thus being pivotedabout the hub 23 and provides a support and guide for the remainder ofthe traverse mechanism. A guide 24 formed at the top of the traverseframe 22 controls the movement of a traverse bar 25 that has attachedthereto a yarn guide supporting rod 26 carrying a yarn guide 21. Thetraverse bar 25 is reciprocated by its aXis. an angle, obviously thiswould require a compen- 3 a cam (not shown) to control the path of theyarn on the package being formed, while the whole traverse frame 22rotates clockwise, as seen in Figure l, as the package is built.

The rotation of main shaft 2, and with it the rotation of spindle 2, ishalted by the traverse bar 25 cooperating with a package size controlgauge 28 placed in a predetermined position on the extension of traverseframe dog segment I9 and held thereon by a set screw 29. Thus, whenpackage 3 has reached its predetermined size the traverse bar will havebeen moved to such a position that the point 3| thereof will strike nearthe middle of face 32 of gauge 28 causing the rotation of lever I8 aboutstud shaft 2I, which rotation releases brake lever [4. The free brakelever I4 is pulled counter-clockwise by any suitable means, such as aspring or a weight (not shown), thus rotating lever rod I2 to applybrake I5 to drum II, and at the same time causing cam I3 to lift idlerpulley 6 from the belt 5 which action effects the removal of the beltfrom the surface of the drive pulley 4.

By grindin the face 32 of gauge 28 to a certain'contour, no detrimentaleffects are produced on the package by the striking of traverse bar 25against gauge 28 to halt the winding operation when the package hasreached its predetermined size.

To produce the desired results w have found that the face 32 should havean angle of slope which ranges from 12 degrees vertical and 30 degreeshorizontal to-1'7 /2 degrees vertical and 25 degrees horizontal, highlysatisfactory results being obtained when the angle of slope of in Figure5 of the drawing, the horizontal angle which may vary from 25 to 30being indicated by reference character A and the vertical angle whichmay vary from l2 /2 to 17 being indicated by reference character B.These angles are conditional upon th point 3I being formed by ending thetraverse bar 25 at right angles to If the corner or point 3I is groundto sating change in the angle of slope of the face 32.

The gauge is preferably made of hot rolled steel, case hardened, but maybe made of ther types of steel alloys such as tool steel, etc.

4 It is to be understood that the foregoing detailed description isgiven merely by way of illustration and that many variations may be madetherein without departing from the spirit of our invention.

Having described our invention, what we desire to secure by LettersPatent is:

1. In a yarn package winding machine comprising a drive for rotating thepackage, braking means adapted to stop the rotation of said package, atraverse bar having a square end and yarn guide for traversing the yarnon said package, and means including a traverse frame dog segment forholding said braking means in inoperative position, a gauge mounted onsaid traverse frame dog segment for cooperating with sai traverse bar tothrow said braking into operativ position to halt th winding operationwhen sai package has reached a predetermined size, said gauge comprisinga member having a beveled edge cut away at one end thereof to form astriking face for coming into contact with one corner at the end of saidtraverse bar, the striking face being in a single plane sloping from 12degrees vertical and 30 degrees horizontal to 17 degrees vertical and 25degrees horizontal and being at an angle to the plane of said bevelededge.

2. In a yarn package winding machine comprising a drive for rotating thepackage, braking means adapted to stop the rotation of said package, atraverse bar having a square end and yarn guide for traversing the yarnon said package, and means including a traverse frame dog segment forholding said braking means in inoperative position, a gauge mounted onsaid traverse frame dog segment for cooperating with said traverse barto throw said braking into operative position to halt th windingoperation when said package has reached a predetermined size, said gaugecomprising a member having a beveled edge cut away at one end thereof toform a striking face for coming into contact with one corner at the endof said traverse bar, the striking face being in a Single plane sloping17 degrees vertical and 27 /2 degrees horizontal and being at an angleto the plane of said beveled edge.

JOHN LEE HALL. ANGELO M. SAN TOLLA.

